I have a blank screen on my AVIC-N3. I had been getting an error message concerning the parking brake. Now nothing. How do I do a master reset (if that's what will restore the system). I'm on the road and need my backup camera as I'm driving my RV. Help. Thanks.
Russ

If it's similar to other nuvis, just press on the upper right side of screen and then power on the unit while continuing to press on the upper right of the screen. It will prompt you to clear all user data...click on 'Yes'

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the pioneer avic n3 has a seperate brain system and there is a cable that hooks the two together its called like the 13 pin wire or something and once you hook the brain and the head unit together it will have the display and everything else

Hi check your navigation disc for dust, dirt, damage.
if disc is good, you might like to try running a dvd cleaner in the unit, the avic has a fan that sucks in dust from the car, and this coates the cd lens.